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The Moiré Effect makes the coolest lighthouse ever

You’ve sen the Moiré Effect before, even if you don’t know what it is. Basically, it’s the result of overlapping sets of parallel lines. The Moiré Effect creates patterns that sometime appear to move when you move or that can appear very confusing to the eye. If you exploit the effect just right, though, you can make some very helpful shapes. This lighthouse uses the Moiré Effect to create arrows that point ships straight towards the lighthouse no matter where the ships are.

Full story at YouTube.

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